Sash-fastener.



F. T. DAVIS.

SASH FASTBNER.

APPLICATION FILED JUNE 4, 1914.

1,127.200. Patented Feb. 2, 1915.

MV tlf. z' /z 1HE NORRI PETERS m.. PHOU-LITHU.. WASHINGTON, D. C

FRANKLIN TRUMN DAVIS, OF MOUNT VERNON, NEW YORK.

, SASHFASTENER.

menace.

Specification of Letters Patent.

Patented Feb. 2, lgl..

Application filed June 4, 1914. Serial No. 42,913.

To all 'w71 om it may concern:

Be it known that I, FRANKLIN T. Davis, a citizen of the United States,and a resident of Mount Vernon, in the county of TVestchester and Stateof New York, have invented anew and improved SasliFastener, of which thefollowing is a full, clear, and eX- act description.

My invention relates to sash fasteners; and the object thereof is toprovide a simple, inexpensive and automatic sash fastener which isburglar-proof, and which fastener will automatically close only when thetwo sashes of a window are moved to the closed position, whereby injuryis prevented to the window bythe fastener'.

With the above and other objects in view, the nature of which will morefully appear as the description proceeds, the invention consists in thenovel construction, combina.- tion and arrangement of parts as hereinfully described, illustrated and claimed.

In the accompanying drawings, forming part of the application, similarcharacters of reference indicate corresponding parts in all the views,and Figure l is a plan view of a fastener embodying my invention showingit as applied to sashes in closed position; Fig. 2 is a vertical sectionon line 2-2, Fig. 1; Fig. 3 is a side elevation of the fastener showingthe same in open position with the sashes relatively displaced; Fig. 4cis a section similar to Fig. 2 showing the sash fastener locking thesashes at a slightly different position than what is shown in Fig. 2;Fig. 5 is a plan view of the base` plate showing a modified structure ofthe catch; and Fig. 6 is a plan view of a modified structure of the dogadapted to engage the catch.

Before proceeding to a more detailed description of my invention, itmust be clearly understood that my fastener herein disclosed is animprovement over my Patent No. 331,041.

The improvement in the fastener herein described consists in theprovision of a dog which retains the latch of the fastener in the openposition and of a trigger associated with the dog permitting the releaseof the Vlatch from the open position, only when the latch and catchtherefor of the fastener are moving toward one another.

Referring to the drawings, more particularly to Figs. 1. to 11,inclusive, 7 represents a base-plate having means whereby the same maybe secured in a suitable place to the upper sash. Spaced lugs 8 areprovided at the interior side of the base plate, and pivotally mountedtherebetween is a latch 9. The latch has an elongated slot l0 open atthe pivoted end. fi. portion 11 bridges the lower surface of they saidslot adjacent the pivoted end; the purpose of the portion 11 will appearhereinafter. rlhe pin l2 which connects the latch to the base-plate 7carries a spring 13 which normally'tends to force the latch from theopen to the closed position, t'. e., from the position shown in Fig. 3to the position shown in Fig. 2. Pivotally mounted in the slot 1G abovethe bridged portion 11 is a dog 1e provided at the non pivoted end withan opening l5, preferably rectangular in shape, which is adapted toengage a hooked end 16 of a stop 17 forming an integral part of thebase-plate 7. The dog 14, at the non-pivoted end, is also provided witha downward projection 18 which rests against the back of the stop 17under the action of the spring 13 when the latch is in the openposition. To prevent the projection 1S of the dog let from maintainingits engagement with the rear of the stop 17 whenthe latch 9 is movedtoward the stop, said stop is provided with shoulders 19 on which thenon-pivoted end of the dog rests when the latch is in the open position.The dog 14C at the pivoted end is provided with a slot 20; and mountedin the slot on a pivot 21, which connects the dog to the latch, is atrigger 22 the end 23 of which normally projects out of the slot 2O andwhich end is heavy enough to always bring the other end Q4 of thetrigger against the bottom of the slot 20.

Secured to the lower sash is a catch 25 which is adapted to projectthrough the slot l0 adjacent the dog lil, the catch 25 being providedwith a suitable base-plate 26 which is provided with means for securingthe same to the lower sash. The opening 15 and the projection 18 of thedog 14 are so formed with reference to the stop 17 that when the dog14:.is in engagement with the stop 17 the lower surface of the latch 9overhangs 'the inner side of the base-plate 7, as best seen in Fig. 3.This is done for the purpose of causing the disengagement of the dog 14from the stop 17 when the projecting part 27 of the latch comes incontact with the transverse part of the lower sash which carries thecatch 25.

It will be seen from Fig. 3 that as the,

lower sash moves downward inthe direction of the arrow as shown, or theupper sash upward, the latch 9 will be moved toward the upper sash,moving therewith the dog 14, as shown in Fig. 3 in dotted line,

until the upper edge of the sash strikes the end 23 of the trigger 22,which will raise the dog 14 above the stop 17 and permit' as thedistance of said boss 29 from the pivot 21 is greater than the distanceof the upper edge of said slot 10 from the said pivot. vIf the said dogshould be thrown against the upper edge of the slot 10 in the downwardmovement of said latch, the

. catch 25 will move the same into the position shown in Figs. 2 and 4.

From the above description it will be seen that the latch 9 will engagethe catch 25 automatically when the catch or latch are moved toward eachother. To disengage the latch 9 from the catch 25 the dog 14 is moved onits pivot 21 by applying a slight pressure to the boss 29, therebydisengaging the projection 18 of the dog from the shoulders 30 or 3l(see Figs. 2 and 4) of the stop 17 and then moving the latch 9 on itspivot until the hook 16 catches the dog as previouslyl described. Afterthe latch has been placed into position shown in Fig. 3, while thesashes are in the position shown in Fig. 2, and the lower sash or theupper sash is moved relative to one another, the upper edge of the lowersash will come in engagement with the end 23 of the trigger 22, movingthe same upwardly. The end 24 of the trigger 22 by this movement iscleared from the bottom of the notch 20 in the dog, leaving the dog inengagement with the stop 17 until the projecting part 27 of the latch 9is engaged by the said edge of the window, when the dog 14 will be movedaway from the stop 17, as previously stated. Due to the fact that theaction of gravity on the dog 14 always tends to keep the samey inengagement with the stop 17, the movement of the latch on its pivot willonly move said dog on the shoulders 19 until the lower sash releases thelatch 9, which will bring the projection 18 against the rear of thestop, and the hook will prevent the snapping of l'said dog from the stopno'matter how fast the ylatch v9 moves on its pivot. From lthe above itwill be seen that the latch 49 can only be released from the stop whenthe catch is moved toward the latch or vice versa. Therefore, under nocircumstances can the latch 9 break the window carried by the lowersash, as generally happens.

The reason for providing the upper shoulder 31 on thestop 17 is topermit the lockingof the window when` dirt, snow or ice accumulatesbelow the lower sash. rIhe kprovision of the bridging yportion 11 is toprevent the raising of the dog 14 from the position shown in Figs. 2 and3 by inserting a wire between the'sashes, as is generally done byburglars; so that this bridging portion in the latch makesy the sameburglar roof. i

p In Figs. 5 and 6 a modified structure of the stop and dog isillustrated. In this case the dog 14, at the nonpivoted end, is providedwith notches 32 at the sides thereof in lieu of the opening 15, and,therefore, the non-pivoted end is T shaped, as shown at 33. The stop 17in this case is provided with a slot, the sides 34 of which slot has ahooked end adapted to be engaged by the T 33 so that ultimately the sameresult is obtained. The pivoted end of the dog 14 is provided also witha trigger 22, which is similarly operated. f

From the foregoing description, taken in connection with theaccompanying drawings, the advantagev of the construction and koperationof the device shown will be read ily understood by those skilled in theart to which the invention pertains; and while I shave described theprinciple ofr operation,

together with the device which I now consider to be the best embodimentthereof, I desire to have it understood that the device shown ismerelyillustrative and that such changes may be made when desired as arewithin the scope of the appended claims.

yHaving thus described my invention, I claim as new and desire to secureby Letters Patent: f

1. In a fastening device of the class described, a basev plate, a latchassociated therewith, a catch, a dog carried by the latch co-acting withthe base plate -forlocking the latch in open or closed position, and atrigger carried by the dog whereby said latch can only be released fromits open position when the latch is moved toward the catch or the catchtoward the latch.

2. In a rfastening device of the class described, a base-plate having astop thereon,

f a spring actuated latch pivotally connected to said basefplate, acatch for said latch, a dog pivotally connected to said latch, said stophaving a hook adapted to engage the dog whereby said latch is locked inlopen position, and a trigger ,associated with the dog .for raising saiddog above the hook after the dog hasbeenmoved bythe latch to clearithehook, said `trigger'op'erating vthe dog when said latch is moved towardthe catch or the catch, toward the latch, said stop having means adaptedto be engaged by said dog when said latch engages the catch, wherebysaid latch is locked in closed position.

3. In a fastening device of the class described, a base-plate having astop thereon; a spring-actuated latch pivotally connected to saidbase-plate, said spring normally tending to move said latch to theclosed position; a catch for said latch, said latch having a slotadapted to engage the catch when said latch is in closed position; a dogin said slot pivotally connected to said latch, said stop having a hookadapted to engage the dog, whereby said latch is locked in openposition; and a trigger associated with the dog for raising said dogabove the hook, said latch overhanging said base-plate when locked inopen position, so that when the catch or latch moves relatively to eachother said latch is moved on its pivot, whereby the dog is moved by thelatch to clear the hook, the said trigger being adapted to operate thedog on its pivot when the latch is moved toward the catch or the catch,toward the latch.

fi. In a fastening device of the class described, a base-plate having astop thereon; a spring-actuated latch pivotally connected to saidbase-plate; a catch for said latch; a dog pivotally connected to saidlatch and adapted to engage said stop, whereby said latch is locked inopen or closed position; means associated with the dog for unlocking thelatch when the same is locked in open position, said means becomingoperable when said latch moves toward the catch or the catch, toward thelatch, said latch having means preventing an unauthorized displacementof the dog when the latch is locked in the closed position by said dog.

5. In a fastening device of the class described, a base-plate having astop thereon; a spring actuated latch pivotally connected to saidbase-plate; a catch for said latch;

and a dog pivotally connected to said latch and adapted to lock saidlatch in open or closed position, said stop having means whereby saidlatch can be locked in closed position in predetermined places,substantially as and for the purpose set forth.

6. In a fastening device of the class described, a base-plate having astop thereon; a spring-actuated latch pivotally connected to said base;a catch for said latch; and a dog pivotally connected to said latch andadapted to engage said stop, whereby said latch is locked by said dog inopen or closed position in predetermined places, substanders adapted tobe engaged by said dog when said latch is in closed position, wherebysaid latch can be locked in two diderent closed positions, substantiallyas and for the purpose set forth.

7. In a fastening device of the class described, a base plate, a latchmovable thereon, a catch for the latch, means carried by the latchadapted to engage the base plate for locking the latch in open or inclosed position, and a trigger carried by said means adapted to releasesaid latch from the open locked position when said latch is moved towardthe catch or the catch, toward the latch.

8. In a fastening device of the class described, a base plate, a latchmounted to swing on the plate, a catch for the latch, a dog on saidlatch adapted to co-act with the base plate to lock said latch in openposition, and a trigger carried by said dog for moving the dog on itspivot when said latch is in open position and said latch moves towardthe catch or the catch, toward the latch.

In testimony whereof I have signed my name to this specification in thepresence of two subscribing witnesses.

FRANKLIN TRUMAN DAVIS.

Witnesses:

JOHN J. NoLAN, JOHN H. EAns.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents,

Washington, D. G.

